1 /*- 2 * Copyright (c) 2009 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Alistair Crooks (agc@NetBSD.org) 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 /* 30 * Copyright (c) 2005-2008 Nominet UK (www.nic.uk) 31 * All rights reserved. 32 * Contributors: Ben Laurie, Rachel Willmer. The Contributors have asserted 33 * their moral rights under the UK Copyright Design and Patents Act 1988 to 34 * be recorded as the authors of this copyright work. 35 * 36 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 37 * use this file except in compliance with the License. 38 * 39 * You may obtain a copy of the License at 40 * http://www.apache.org/licenses/LICENSE-2.0 41 * 42 * Unless required by applicable law or agreed to in writing, software 43 * distributed under the License is distributed on an "AS IS" BASIS, 44 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 45 * 46 * See the License for the specific language governing permissions and 47 * limitations under the License. 48 */ 49 50 #ifndef READERWRITER_H_ 51 #define READERWRITER_H_ 52 53 #include "create.h" 54 55 #include "memory.h" 56 57 /* if this is defined, we'll use mmap in preference to file ops */ 58 #define USE_MMAP_FOR_FILES 1 59 60 void __ops_reader_set_fd(__ops_stream_t *, int); 61 void __ops_reader_set_mmap(__ops_stream_t *, int); 62 void __ops_reader_set_memory(__ops_stream_t *, const void *, size_t); 63 64 /* Do a sum mod 65536 of all bytes read (as needed for secret keys) */ 65 void __ops_reader_push_sum16(__ops_stream_t *); 66 unsigned short __ops_reader_pop_sum16(__ops_stream_t *); 67 68 void __ops_reader_push_se_ip_data(__ops_stream_t *, __ops_crypt_t *, 69 __ops_region_t *); 70 void __ops_reader_pop_se_ip_data(__ops_stream_t *); 71 72 /* */ 73 unsigned __ops_write_mdc(const unsigned char *, __ops_output_t *); 74 unsigned __ops_write_se_ip_pktset(const unsigned char *, 75 const unsigned int, 76 __ops_crypt_t *, 77 __ops_output_t *); 78 void __ops_push_enc_crypt(__ops_output_t *, __ops_crypt_t *); 79 void __ops_push_enc_se_ip(__ops_output_t *, 80 const __ops_key_t *); 81 82 /* Secret Key checksum */ 83 void __ops_push_checksum_writer(__ops_output_t *, __ops_seckey_t *); 84 unsigned __ops_pop_skey_checksum_writer(__ops_output_t *); 85 86 87 /* memory writing */ 88 void __ops_setup_memory_write(__ops_output_t **, __ops_memory_t **, size_t); 89 void __ops_teardown_memory_write(__ops_output_t *, __ops_memory_t *); 90 91 /* memory reading */ 92 void __ops_setup_memory_read(__ops_io_t *, 93 __ops_stream_t **, 94 __ops_memory_t *, 95 void *, 96 __ops_cb_ret_t callback(const __ops_packet_t *, 97 __ops_cbdata_t *), 98 unsigned); 99 void __ops_teardown_memory_read(__ops_stream_t *, __ops_memory_t *); 100 101 /* file writing */ 102 int __ops_setup_file_write(__ops_output_t **, const char *, unsigned); 103 void __ops_teardown_file_write(__ops_output_t *, int); 104 105 /* file appending */ 106 int __ops_setup_file_append(__ops_output_t **, const char *); 107 void __ops_teardown_file_append(__ops_output_t *, int); 108 109 /* file reading */ 110 int __ops_setup_file_read(__ops_io_t *, 111 __ops_stream_t **, 112 const char *, 113 void *, 114 __ops_cb_ret_t callback(const __ops_packet_t *, 115 __ops_cbdata_t *), 116 unsigned); 117 void __ops_teardown_file_read(__ops_stream_t *, int); 118 119 unsigned __ops_reader_set_accumulate(__ops_stream_t *, unsigned); 120 121 /* useful callbacks */ 122 __ops_cb_ret_t litdata_cb(const __ops_packet_t *, __ops_cbdata_t *); 123 __ops_cb_ret_t pk_sesskey_cb(const __ops_packet_t *, __ops_cbdata_t *); 124 __ops_cb_ret_t get_seckey_cb(const __ops_packet_t *, __ops_cbdata_t *); 125 126 int __ops_getpassphrase(void *, char *, size_t); 127 128 #endif /* READERWRITER_H_ */ 129